SAS 9 Study Guide: Preparing for the Base Programming Certification Exam for SAS 9

By Ali Hezaveh

A radical and self-contained remedy for SAS® clients getting ready for the bottom Programming Certification examination for SAS® 9—complete with motives, guidance, and perform examination questions

SAS® nine learn consultant is designed to aid clients of SAS® nine familiarize yourself with the high quality issues of the software program in addition to improve good learn concepts that may shorten guidance time and confirm winning examination effects. the subsequent 5 learn issues are addressed with a targeted bankruptcy dedicated to every one: getting access to information; developing info buildings; dealing with info; producing studies; and dealing with mistakes. SAS® nine research advisor presents either a conceptual and useful method of every one of those parts with unique reasons via examples.

Each bankruptcy provides innovations, methods, and functions in a transparent, step by step layout besides targeted factors and examples. person chapters additionally contain:

  • A Two-Minute Drill that offers a record of key issues for review

  • An overview examination, which demanding situations readers to supply brief solutions detailingthe chapter's assurance of SAS® 9

  • A perform examination, which enhances content material and familiarizes readers with the constitution ofthe real Base Programming Certification Exam

Written by way of a practising SAS® qualified specialist, this e-book is a thorough, yet available, overview for getting ready for the bottom Programming Certification examination for SAS® nine and will additionally function a pragmatic reference instrument for verified qualified pros who want to extra their wisdom of SAS® 9.

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Three. whilst interpreting from an exterior ‘file, after end-of-file is reached. four. If examining from multiple exterior dossier, it stops whilst end-of-file is reached on anybody of the enter facts documents. five. If a unmarried SET, MERGE, or replace is used, it stops whilst the entire enter facts units were achieved. 6 . If a number of SET, MERGE, or replace is used, it stops while end-of-file is encountered via any of the data-reading statements. fifty eight developing information buildings 2. 2. three facts step boundary and kinds The SAS approach acknowledges a number of step limitations for an information step: 1. A RUN assertion. 2. The semicolon (when playing cards is used) or 4 semicolons while CARDS4 is used. three. a knowledge assertion that starts off a brand new facts step. four. A PROC assertion. five. An ENDSAS assertion. 6. In noninteractive or batch mode, the tip of an enter incorporates a SAS software assertion. TIP: In thefollowing software observe that, the choices statementapplies for either facts steps: instance 2. four info s; Set a; ideas Dat t; Set b; run; firstobs=5 obs=44; If the OPTlONS assertion is positioned after the road ‘Data t ;’, it will likely be powerful just for the second one info step. There are 4 uncomplicated varieties of facts steps 1. info from an exterior dossier info from instream resource three. information current in SAS datasets four. information generated from programming statements. 2. 2. 2. four while variable values are set to “missing” instantly The values of all variables (except automated variables) within the application information vector are first and foremost set to “missing” sooner than the 1st new release of the knowledge step. Thereafter, variables are set to “missing” reckoning on the resource of the enter, both (1) uncooked info or (2) SAS datasets. 1. studying uncooked information. firstly of every new release of knowledge step, SAS units the price of every variable you create within the information step to lacking with the subsequent exceptions: a. Variables named in a maintain assertion b. Variables created in a SUM assertion c. facts components in a -temporary- array d. Any variables created with OPTlONS within the dossier or INFILE assertion e. computerized variables. 2. examining a SAS dataset. while variables are learn with a collection, MERGE, or replace assertion, the SAS procedure units the values to “missing” in simple terms sooner than the 1st generation of the information step (if a through assertion is current, the variable values are set to “missing” while the by means of staff changes). Thereafter, the variables preserve their values till new values develop into on hand. developing information buildings fifty nine Variables created with strategies in SET, MERGE, or replace statements additionally maintain their values from one generation to the subsequent. TIP: Let’s examine the subsequent instance andconsider afewpoints. instance 2. five info a; enter identify $ source of revenue price; Loss= source of revenue - rate; playing cards; Ali 12 eight Bob 15 10 Jane 23 five I run; proc print data=a; run; output: The SAS process 2005 11:38 Tuesday, February eight , Obs 1 2 three identify A1i Bob Jane source of revenue 12 15 23 price Loss eight four 10 five five 18 1. If within the first line of knowledge the price of the variable source of revenue is a interval (. ) rather than 12, this system will paintings effective. within the output, SAS provides a interval for source of revenue within the first remark and a word within the log asserting: word: lacking values have been generated due to appearing an operation on lacking values.

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